Femtotesla atomic magnetometry in a microfabricated vapor cell

被引：139

作者：

Griffith, W. Clark ^{[1
]}

Knappe, Svenja ^{[1
,2
]}

Kitching, John ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Div Time & Frequency, Boulder, CO 80305 USA

[2] Univ Colorado, Boulder, CO 80309 USA

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 26期

关键词：

D O I：

10.1364/OE.18.027167

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe an optically pumped Rb-87 magnetometer with 5 fT/Hz(1/2) sensitivity when operated in the spin-exchange relaxation free (SERF) regime. The magnetometer uses a microfabricated vapor cell consisting of a cavity etched in a 1 mm thick silicon wafer with anodically bonded Pyrex windows. The measurement volume of the magnetometer is 1 mm(3), defined by the overlap region of a circularly polarized pump laser and a linearly polarized probe laser, both operated near 795 nm. Sensitivity limitations unique to the use of microfabricated cells are discussed. (C)2010 Optical Society of America

引用

页码：27167 / 27172

页数：6

共 20 条

[1] High-sensitivity atomic magnetometer unaffected by spin-exchange relaxation [J].

Allred, JC ;

Lyman, RN ;

Kornack, TW ;

Romalis, MV .

PHYSICAL REVIEW LETTERS, 2002, 89 (13) :130801-130801

[2] Optical magnetometry [J].

Budker, Dmitry ;

Romalis, Michael .

NATURE PHYSICS, 2007, 3 (04) :227-234

[3] Ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer [J].

Dang, H. B. ;

Maloof, A. C. ;

Romalis, M. V. .

APPLIED PHYSICS LETTERS, 2010, 97 (15)

[4] Improved direct-coupled dc SQUID read-out electronics with automatic bias voltage tuning [J].

Drung, D ;

Bechstein, S ;

Franke, KP ;

Scheiner, M ;

Schurig, T .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2001, 11 (01) :880-883

[5] DETECTION OF VERY WEAK MAGNETIC FIELDS (10-9GAUSS) BY 87RB-ZERO-FIELD LEVEL CROSSING RESONANCES [J].

DUPONTRO.J ;

HAROCHE, S ;

COHENTAN.C .

PHYSICS LETTERS A, 1969, A 28 (09) :638-&

[6] Miniature atomic magnetometer integrated with flux concentrators [J].

Griffith, W. Clark ;

Jimenez-Martinez, Ricardo ;

Shah, Vishal ;

Knappe, Svenja ;

Kitching, John .

APPLIED PHYSICS LETTERS, 2009, 94 (02)

[7] SPIN-EXCHANGE SHIFT AND NARROWING OF MAGNETIC-RESONANCE LINES IN OPTICALLY PUMPED ALKALI VAPORS [J].

HAPPER, W ;

TANG, H .

PHYSICAL REVIEW LETTERS, 1973, 31 (05) :273-276

[8] Atomic vapor cells for chip-scale atomic clocks with improved long-term frequency stability [J].

Knappe, S ;

Gerginov, V ;

Schwindt, PDD ;

Shah, V ;

Robinson, HG ;

Hollberg, L ;

Kitching, J .

OPTICS LETTERS, 2005, 30 (18) :2351-2353

[9] A microfabricated atomic clock [J].

Knappe, S ;

Shah, V ;

Schwindt, PDD ;

Hollberg, L ;

Kitching, J ;

Liew, LA ;

Moreland, J .

APPLIED PHYSICS LETTERS, 2004, 85 (09) :1460-1462

[10] Cross-validation of microfabricated atomic magnetometers with superconducting quantum interference devices for biomagnetic applications [J].

Knappe, Svenja ;

Sander, Tilmann H. ;

Kosch, Olaf ;

Wiekhorst, Frank ;

Kitching, John ;

Trahms, Lutz .

APPLIED PHYSICS LETTERS, 2010, 97 (13)

← 1 2 →